Great, it's time to repost.... because I bought yesterday my first recorder, my first ZOOM!!! Oh, yeah.
Don't say all the good things, it would be too long. Just a pair, but first what's bad...
Let's say that yesterday I recorded a practise session in MP3 on a Sandisk Ultra II 256MB and it didn't work

the STE-001.mp3 around the middle was corrupted, and also the other 4 tracks I did after. While playing this file, suddenly the signal fault to 0, like sombody has unplugged the mics during the recording (but it was with the internal mics of course). The H4 was unable to play his own tracks made after the 001, and when I put the memory card in the pc or in my pda everything freezed. So I deleted the files. The SD has been formatted by the zoom. During the recording I didn't notice anything strange, also because I did the level scanning before every recording. So this is strange, today I will try again with the SD provided with the H4, hope in better results.
I didn't found the beep. I will look better
I like that I can use as metronome, I don't have a real one, only on the PC and on the PDA... that is enough in any case. And i like the interface, it's so friendly for me... i read some reviews where the people complained about the menu button, and that the interface is counterintuitive... i find it's actually the opposite, maybe becouse i'm used with PDAs... i'm not able at all to handle a Minidisc for instance. The H4 is great.
OK people! Now i wait for the official "welcome in the club!"

Where are the confetti, and the candles?
PS Thanks so much for all the replyies, it's so interesting the modding!!!